abstract
The detection of metal cations and antibiotics based optical sensing material in the human body and environment is very vital. Two new ternary Co(II) coordination polymers, namely {Co(L)(0.5)(BTCA)(0.5)(H2O)]center dot 3H(2)O}(n) (1) and [Co(L)(HIPA)center dot H2O](n) (2) (H4BTCA = 1, 2, 3, 4-butanetetracarboxylic acid, H2HIPA = 5-hydroxyisophthalic acid), were constructed and characterized from the rarely reported semi-rigidity 1,4-bis(thiabendazole-1-yl)-2-butene (L) N-donor linker. 1 displays a 2D 3,4-connected 3,4L13 layer, while 2 features a 1D straight chain, and further extends into a 2D supramolecular network via O-H center dot center dot center dot O interactions. 1 and 2 exhibit superior chemical and thermal stability. 1 and 2 can be used as efficient sensors toward Zn2+ ions via turn-on fluorescent enhancing and Cu2+ ions by a turn-off fluorescent quenching effect, separately. They were also applied as probes to detect norfloxacin with high sensitivity, selectivity, and recyclability by fluorescence quenching. The luminescent sensing mechanisms for these analytes were speculated. 1 and 2 are the first dual-functional sensors for the detection of Zn2+/Cu2+ ions and norfloxacin.
keywords
METAL-ORGANIC FRAMEWORKS; SELECTIVE DETECTION; CHEMOSENSOR; ZN2+; ANTIBIOTICS; HG2+; MOF; CU
subject category
Chemistry
authors
Wu, YB; Wang, RT; Dong, GY; Fu, LS
our authors
Lianshe Fu
Assistant ResearcherProjects
Nano-argilas para remoção/captura de fosfatos (P) e sua reutilização como fertilizante (NATURAL)
acknowledgements
The project was supported by the Natural Science Foundation-Steel and Iron Foundation of Hebei Province (B2021209020) . This work was also developed within the scope of the project CICECO-Aveiro Institute of Materials, UIDB/50011/2020 & UIDP/50011/2020, financed by na-tional funds through the Foundation for Science and Technology/MCTES.